Heater



June 9,v IZS.

G. HAFNER HEATER Filed Jan. 12

Patented June 9, 1925. i1 i funn-ED .STA/rss P-ATENT'O'lFFICEa'-,

" i GEORG Hannan, or nnvvroax, NQ Y.

HEATER.

Application filed Januaryl2, 1924. Serial No. 685,733.

gas or coal stove, the purpose being to setV the heaterv upon the stove `over the exposed lid opening through which an air draft is introduced over the grate of the heater.

Another object is to provide a heater having a firing grate mounted therein and an additional circular iue channel, the air passing upwardly through the grate and thence into the circular channel from which said draft is released by passing through the lid opening of a stove and into a chimney flue. These and other objects will vbecome apparent in the descriptionbelow, in. which characters of reference refer to like-named4 parts of the drawing. v

Referring briefly `to the drawing, Figure 1 is a yfront elevational view of the heater.

Figure 2 is a sectional elevation view taken on line 2-2 of Figure 1.

Figure 3 is a cross-sectional view taken on line 3443 of Figure 1.

Figure 4 is a cross-sectional View taken on line 4-4 of Figure 2.

Referring in detail to the drawing, the numeral 10 indicates an outer circular casing which is provided at its lower end with a reenforcing ring 11, and' atits upper end with a cover 12. A relatively large open-` ing 13 in the cover 12 is providedjwith an annular shoulder 14 upon which a circular lid 15 is supported. Vithin the outer cas-y ing, an upright inner casing 16 having a bottom 17 which is supported above the lower edge of the outer casing is rigidly fixed. The bottom 17 israised above the lower edge 18 of the casing and is rigid with the casing in order to support the weight of the inner casing. A rectangular opening 19 passes through the outer casing and the inner casing near their lower ends, and the spaces between the inner and outer casings and the sleeve are sealed yby walls 20. This opening is provided in order to permit reintermediate the height of the sleeve. Near the upper end of the inner casing, addi-k tional brackets 23 are provided and are firmly anchored tothe wall` of the inner casing.

,moval of ashes which fall from lthe grate 21, the latter 'being mounted on brackets 22 These brackets support an inverted conical f baille plate 24. 4This baffle plate is circular and at its 'center has a circular opening 25 Y in which a pair of semi-circular doors 2G and 27 are mounted. These doors are provided with spring hinges 28 which lnormally retain the doors in the position shown in Figure 2. The arrows illustrated in Figure 2 are used to indicatethe direction of How of draft which enters the ash pit 29 thru the opening 19 and passes upwardly between the bars BO lof the grate. After passing through the fire, the draft passes through the circular space 31 formedbetween theY baffle plate 24 and the sleeve 16. From thence the draft passes downwardly on the outside ofthe inner casing and betweenit and the outer casing, thereafter passing di rectly through the lid opening 32 of an oil Y or gas stove. In use, the heater is placed overthelid opening of a stove so that a draftis induced in the manner previously mentioned. In

`order to stock the'heaterV with fuel, the latter is passed through the doors 26 and 27 after the same have been rotated downwardly to open position. By lifting the lid 15,

al quantity kof coal or other suitable fuel may be dumped upon the baffle plate 24`which serves asa suitable receptacle therefor, and the doors 26 and 27 will open of their own accord, dueto the downward pressure of the fuel thereon,thereby precipitating said fuel upon the-grate.

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at the bottom and open at the top, the inner .casing communicating with the outer casing at the top of the heater walls connect ing the inner and outer casings at the bot- I tom and'bounding an opening communicating with the chamber of the inner casing, a

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grate mounted in the inner casing above the opening, a conical battle mounted inverted in the upper end of the inner casing, said baffle having an opening therein, semi-ein cular doorsi normally closing!` saidyfopenng and spring .actuated :hinges supporting ;sa d doors, the air circulation being adaptedto enter the inner easing through the opening beneath the grate and course upwardly around the baille and then downwardly between the inner and outer casings and out through the lower open end of the outer 10 @n.sieg.-

:jlnnteistunony whereof Liixgny Signature.

` GEORG HAFNER. 

